At Monday (Nov. 16) night's L.A. premiere for "The Hunger Games: Mockingjay - Part 2," the fourth and final stand for The Girl On Fire, Katniss Everdeen, the District 12 OGs came together for a "THG" cast selfie to end all cast selfies -- in the figurative and literal sense.

In other sob-worthy news, author Suzanne Collins paid a final tribute to the films as well, thanking director Francis Lawrence for making the final three installments "amazing" and giving a nod to the lady in the center of everything: Jennifer Lawrence.

"Jennifer Lawrence, your emotional depth, luminous presence, and sheer power carry this story and I will always be grateful to you for opening the door and allowing it to come into your life," Collins wrote.

She also gave props to the rest of the cast, saying that she'd change not a single one of them and thanking them "for volunteering for the Games and inhabiting these characters with such texture, color, humor and pain."